I have a brand new install of mandtis 2.9, running on Apache on Windows. I'm just starting the installation process and I get an error opening "install.php" (error, "Site can't be reached"). I see the following error in the PHP log:

PHP Deprecated: __autoload() is deprecated, use spl_autoload_register() instead in C:\Apache Software Foundation\Apache24\htdocs\mantisbt\core.php on line 162

PHP is version 7.2, just downloaded and installed (full PHP information is below).